Home / 2,697.39-4,039.65-1,720.53

Finding the Fourth Proportional to 2,697.39, 4,039.65 and 1,720.53

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Solution

The fourth proportional to 2,697.39, 4,039.65 and 1,720.53 is: 2,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.39 : 4,039.65 = 1,720.53 : x
  2. Step 2: Convert to fraction form
    2,697.39/4,039.65 = 1,720.53/x
  3. Step 3: Cross multiply
    2,697.39x = 4,039.65 × 1,720.53
  4. Step 4: Simplify right side
    2,697.39x = 6,950,339.01
  5. Step 5: Solve for x
    x = 6,950,339.01/2,697.39
  6. Step 6: Final answer
    x = 2,576.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.